The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Sep. 05, 2006

Filed:

Nov. 25, 2003
Applicant:

Yoshitaka Suzuki, Wako, JP;

Inventor:

Yoshitaka Suzuki, Wako, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60R 21/16 (2006.01);
U.S. Cl.
CPC ...
Abstract

A weight-detecting system for detecting the weight of an occupant sitting on a seat includes inner and outer weight-detecting units. The outer weight-detecting unit includes strain resistors mounted on a lower surface of its sensor plate. The inner weight-detecting unit includes strain resistors mounted on an upper surface of its sensor plate. When output voltages from the outer weight-detecting unit are represented by A and B, and output voltages from the inner weight-detecting unit are represented by C and D, the weight of an occupant is detected based on a value A+B+C'+D′ provided by adding output voltages C′ and D′ resulting from the inversion of the output voltages C and D to the output voltages A and B. The weight-detecting units have the same characteristic of change in output voltages with respect to change in temperature. Therefore, when the output voltage (A+B) is added to the output voltage (C′+D′), a detection error due to a change in temperature can be countervailed. Thus, the weight of the occupant sitting on a seat can be detected accurately without being influenced by the change in temperature.


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